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(No Model.) 3 Sheets-Sheet 1 G. J. ANDERSSON 85 JQO. DTTRCH. PROCESS 0F MANUFACTURING OZONE AND BY-PRODUCTS.

(No Model.)

3 $heets-Sheet 2r G. J. ANDERSSON 85 J. C. DITTROH. PROCESS OP MANUFACTURING OZONE AND BY-PRODUO'I'S.

Patented Feb. 23, 1897.

Y u@ I n y l L/ y y No Model.) y3 Sheets-Sheet 3.

J. ANDBRSSON iz J. C. DITTRIGH. PROCESS 0F MANUFACTURING GZONN AND 13N-PRODUCTS.

170.577,523. y Patalted Feb. 23, 1897.

ilirirnn .rerns ATNT GUSTAF JOHANN ANDERSYSON AND 'JULlUS CARL DITTRICH, OF' BROOKLYN, l

NEV YORK, ASSIGNORS TO THE OZONE COMPANY, OF SAME PLCEQAND` new Youn, N. Y.

oscense or' tne'nurncrunine ozone AND sY-PRoDU'c'Ts.

SPE'GEICATIQN forming part of Letters Patent No. 577,523, dated February 28, 1897-.1

Application died December l2, 1894:. Serial No. 531,580. (No model.)

To all raf/wm, t 'Hefty concern.-

Be it known that we, Gusrnn JOHANN AN- nnnssorna subject of the King of Sweden and Norway, and JULIUS CARL DITTRICH, a subject of the Emperor of Germany, residing in .rcolrlyn1 in the county of Kings and State of New York, have invented certain new and useful improvements in the Manufacture of Ozone and By-Products; and we do hereby' io declare that the following is a i'nll, clear, and

the nitrogen of the air, as will be fully described farther down.

in the accompanying drawings, Figure 1` represents e side elevation of an ozone plant. Fig. 2 is a top plan View of Fig. l. Fig. 3 is a Vertical section of an ozone-generator connected with an apparatus for' collecting the by-products. Fig. e is atop plan View of the apparatus for collecting the by products Fig. .5 is a top View of the ozone-generator, and Fig. 6 is the electrical diagram for the plant. A

Similar letters of reference indicate correspending parts in all the drawings.

Ozone, as is well known, is an allotropic modification of oxygen. The common oxygen contains two atoms of oxygen (O2) to the molecule, while ozone contains three, (0s.) This third atom of oxygen is rather loosely combined with the two others and is the so'- called i active oxygen, giving to ozone the great active power by which it is distinguished fronijtne ordinary oxygen. This third atom is easily given ed in the presence of oxidizable substances and acts then in statu 'nascondi' more powerful than ordinary OXyl' gen. The transformation of .oxygen into ozone for commercial purposes is effected by the silent electric discharge oi high-tension currents. No use, generaily, currents of from eight to fourteen thousand volts. Not ail the oxygen can, however, he transformed into ozone. Only a portion of it is transformed.- l

-into nitrous compounds.

Ozone maybe made from pure oxygen or from the common air. lf made fromk pure oxygen, then the same is generated by any of the well-known cheap and reliable chem-k ical methods, for instance, from chlorate of potassium and manganese dioxid. It is plainly understood that only ozone 'results and no byproducts when pure oxygen is ozonized. ozone, then the'oxygen of the air is ozonized and the nitrogen of the 'same is transformed Thus both ozone If air is employed for making the and by-products are obtained. For technical -purposes the air is generally ozonized onac-` coun-t of its cheapness. For medical preparations, however, purel oxygen is usedbe.

cause a purer productis then required. The

air has to be freed lfrom carbon dioxid and moisture before it enters the ozone-generator, and both air and oxygen have to be under pressure, so that la steady current of them` can be passed through the ozone-generators.

The oxygen is generated in the retort A, l

Figs. 1 and 2. the pipe P into the,cylinder-A. When the process is started, cylinder A 'is full 'of water', and the gas` bubbles through the water and From there it goes through I forces the same .out through the small outlet a, according to the quantity of gas collected in the cylinder. The cylinder A' thus acts as, a gasometer. When the cylinderA i'sxnearly filled with oxygen, then the small pipe Bs taken ont and a cap is put on the opening of let in through the water-pipe P', thnsputting the oxygen under pressure.

Now water is' ,851 The cylinder answers the same purpose as the cylinderAw lt is gene-rally filled while 'A' is discharged. l

or both'of the valves V are opened, when the gas will pass through the pi-pe,1)2which After the cylinders .are lled with oxygen one l,

branches outintothreepipes. Through these pipes the oxygen passes into thewash-bottles B B2 B3, which are varranged in` a series, so that the gas passes each successively. Bottle B' contains aeelution of caustic alka`.li,lwhichfl retainsthe-traces o f carbon dioxid. fBottle B2 is charged with hyp'osuliite of sodium,

thus purified and dried oxygen is conducted into the ozone-generators, of which three are illustrated in Figs. 1 and 2, where it is ozonized by the high-tension current. From these generators the ozone passes into the cylinders or tanks A A4, containing various liquids which are to be charged with ozone, that is, they' absorb the same. Such liquids are, for instance, distilled and sterilized water preparedfor medical purposes, or the cylinders may be filled with vegetable or mineral oils or fats. The ozone enters the tanks A.s A4 at the bottom, so as to come in Contact with a high volume nized. substances are bottled, When they will be ready for sale. An excess of ozone is always passed through these substances, so as to insure saturation to their utmost capacity. The-ozone which is not absorbed by the substances is conducted through pipe P3 into the cylinder A5, Fig. 1, Where it is collected. W'hen A5 is filled, then the ozone is put under pressure by Water, as described, and the ozone is used again for absorption, cylinder A5 being simply put in place of cylinder A or. A2.

vVhen purified and dried air is used, then the high-tension current-,transforms the oxygen of the air into ozone, and the nitrogen is transformed into nitrous compounds. In order to eliminate these compounds from the ozone, the mixture, after leaving the ozonegenerator, is passed through a bottle, Fig. 3,-

whieh contains a solution of caustic alkali, forming nitrite or nitrate of alkali. Such bottles may also be filled with Wat-er. Then the nitrous compounds will form nitric acid. The nitrites or nitrates are then p inified and crystallized, or the nitric acid is concentrated, as may be required. All parts of these bottles are interchangeable, and the big safetybulb F above the bottle proper is there for the purpose of keeping the liquidback from the piping when in case of unforeseen circumstances the liquid rises.

The electricity for the plant is generated by a continuous-current dynamo D, Fig. 6.' The current is conducted first into a regulat ing-rhcosiat R, 'and then passes the measur- `S'o'ing instruments, of which one (marked M) is rupter, run by mechanical Then the current en ters the We use the electrical interpower, for which United States Letters Patent No. 537,595 was granted to G. J. Andersson, Aprily 16, i895. From the electrical interruptor the current is taken cff in any suitable number of circuits. Three are illustrated in Fig. U.

shown in Fig. 6. interruptor U.

Each of these three circuits leads t9 the primary coii of an induction-coil. 'lhe circuits unite at o and return tothe dynamo by a single wire. In the secondary windings of the ind notion-coils is induced the high-tension current, which is conducted iuto'the ozone-generators, where 'the oxygen is transformed into ozone and the nitrogen into nitrous compounds.

The induction-coils are constructed like orof the substances to be ozo-` When saturated with ozone, thesel dinary Ruhmkor coils', but have no interrupters. The current is interrupted before it enters the induction-coils in any suitable manner.

The ozone-generator, which is shown in detail i'n Fig. 3, consists of a number of any style of the well-known ozone-tubes O. rlhey are mounted in one big glass jar S and forni a battery. The jar illustrated in Figs. 3 and 'contains four such tubes. The tubes consist of two parallel tubes of thin glass, forming two separate spaces. r[he outside tube is provided with a connecting-tube O4 at the bottom and a sido tube O5 in the upper portion. Four' tubes are combined in the lmanner shown in Fig. 8, so that the purified air or oxygen which enters through pipe P4 communicates with all four tubes and leaves, when czonized, through the one pipe P5. The inner tube O2 is lilled with water,`into which dips an electrode E. The space between the outside and inside tube is the portion traversed by purified air or oxygen. The electrical connections are shown in Fig. 5. The high-tension current electrodes E passes silently through the glass Walls and the space between them Where the oxygen or air passes through, ozonizing them in the well-known manner.

Having thus described our invention, what We clai'i'n therein as new, and desire to secure by LettersPatent, is*

l. The process of manufacturing ozone a'nd nitrous oxids from air consisting in first freeing the air from carbon dioxid and then drying the saine, then ozonizing the oxygen of entering -through thev IOO the air into ozone and oxidizing simultaneously the nitrogen of the saine into nitrous oxids by electrical currents of high tension in an ozone-generator and then separating the nitrous oxids from the ozone by absorbing them in suitable liquids, substantially as described.

2. Aplant formanufacturingozoneandbyproducts eonsistingof a dynamo, a rhcostat,

a mechanical eurient-interrupting device, in-

duction-coils, cylinder-reservoirs gas wash and drying bottles in connection with the reservoirs, ozone-generators in connection with the drying-bottles and in the secondary eircuits of the induction-coils, apparatuses for separating and collecting the by-products in connection with the ozone-generators and tanks in which the ozone is absorbed by suitable substances in connection wili'- these apparatuses, as specified. l

3. ln a plant for manufacturing ozone the combination of a dynamo with a rheostat, .a mechanical current-interrupting device, induction-coils, cylinder-rcservoirs, wash and drying bottles in connection with the reservoirs, ozone-generators in connection with the drying-bottles and in the secondary circuits lof the induction-coils, and tanks inwhich the f ozone is absorbed by suitable substances 1n connection with the ozone-generators asspecified.

combination of a dynamo with a rbeostat, a

mechanical current-interrupting device, in-

duction-coils, cylinder-reservoirs, gas WashA and dryingbottles in connection With the reservoirs ozone-generators in connection with the drying-bottles and in the secondary circuits of the induction-coils, tanks in which the ozone is absorbed by suitable substances in connection with the ozone-.generators and a tank in which the unabsorbed excess of ozone is collected in connection with the absorption-tanks by a return-pipe, as described.

5. In a plant for manufacturing ozone and by-products the combination of a dynamo with a rheostat, induction-coils, cylinder-re?? ervoirs; gas Wash and drying bottles in connection with the reservoirs, ozone-generators in connection with the drying-bottles and in the secondary circuits of the induction-coils; apparatuses. for separating and collecting the by-products in connectonwith the ozone-gem erators and tanks in which the ozone is absorbed in connection with these apparatuses, as 'speciedn In testmony'whefreof We have hereunto set our"hands in the-presence of two subscribing Witnesses.

GUSTAF JOHANN ANDERSSO. JUtiUs CARL DnTRwu.

`X'Sitnesses: 1

' B. VON IIERFF,

A. OUMMINGS. 

